Art of dental surgery



Nov. 20 1923. 1,474,370

L. A. KIANDER ART OF DENTAL SURGERY Filed March 16. 1922 avwmto'aLaurrwfice 14. Km

27 I h s Patented Nov. 20, 1923.

more s'raraears ART OF DENTAL SURGERY.

Application filed March 16,1922. Serial 1 10. 544,372.

To all whom 2 2, may concern."

Be it known that I, LAWRENCE A. KIA'N- one, a citizen of the UnitedStates, and residing at New York, in the county of New York and State ofNew York, have invented certain new and useful Improvements in the Artof Dental Surgery, of which the following is a specification, such aswill enable those skilled in the art to which it appertains to make anduse the same. a

' This invention relates to the art of dental surgery and particularlyto what is known as artificial dentures or bridge and plate work in suchart, and the object of the invention is to provide means for making 7bridge or plate work more effective, practical v claimed.

and efiicient in use and to avoid the capping or crowning of permanentteeth in what is know popularly as bridge-workat the present and, inwhich, by means of my improvement, bridge-work as well as plate-work mayI be detachably connected with the permanent teeth instead of beingrigidly secured there to as is the general custom; a further object ofthe invention is to provide a denture of the class described with aclasp so mounted in connection with the denture as to permit of themovement of said clasp thereon to facilitate the mounting of the dentureupon the permanent teeth of a jaw regardless ofthe position of suchteeth in the jaw and to permit of the removal of such bridge or platework without injury in any way to the permanent or natural teeth; and

with these and other objects in View the invention consists in anartificial denture of the class and for the purposespecified which issimple in construction, efiicient in use and constructed as hereinafterdescribed and The invention. described and claimed herein is animprovement on that shown anddescribed in a prior patent granted to meFebruary 28, 1922, No. 1,408,006, and is fully disclosed in thefollowingspecification, of which the accompanying drawing forms a part,in which the separate parts of my improvement are designated by suitablereference characters in each of the views, and in which I v Fig. 1 is aside view of a part ofa jaw showing my improved artificial denturemounted in connection with two of the natural or permanent teeththereof;

Fig. 2 a bottom plan view of the construction shown in Fig. l;

Fig. 3 a partial section on the line 3-3 of Fig. 2 of the artificialdenture detached and on an enlargedscale; Y

Fig; i a partial section on the line 4 i of Fig. 3 on an'enlarged scale;i f

Fig.5 a partial section on the line 55 ofFig. on an enlarged scale F ig.6 a perspective detail view of the movable clasp employed;

Fig. 7 aperspective detail view of apin or part employed,

Fig. 8 a perspective detail view of a plate employed Fig. 9 aperspective detail view of a shield member employed; v

Fig. 10 a view similar to Fig. i with part of the construction omittedand showing a modification; and, V

h Fig. 11 a view similar to Fig. 10 but showing another modification.

In Fig. 1 of the drawing I have shown at 12 a part of a jaw providedwith two permanent or natural teeth 13 and 14 and at 15 is shown myimproved denture comrarer...

LAWRENCE A. KIANDER, OF NEW YORK, N. Y,

prising a plate 16 of the usual or any desired form and construction towhich, in the clearly shown in Fig. 2 of the drawing. v

Mounted in connection with the other end of the denture is a movableclasp device 21 shown in detail in Fig. 6 of the drawing, said claspbeing provided with teeth engagingprongs 22 adapted to encircle orpartially encircle the teeth 14 as shown Figs. 1 and 2 and with acentral bridge member 23 adaptedto rest upon'the face of the tooth shownin Fig. 2, and the cross head portion ofthe clasp 21 is provided with anaperture 24 adapted to receive the shank of a pin or part25 shown indetail in Fig. 7. i

The pin or part 25 is provided withan enlarged head 26 andfin theconstruction shown in Figs. 1 to 9 inclusive, the head 26 is cut away asshown at 27 In mounting the clasp 21in connection withthe denture 1.5 Iemploy an attaching plate 28 and shield member 29 shown in detail inFigs.. 8 and 9 of the drawing. The plate 28 may be .provided at itsupper edge with an elongated aperture 80 open outwardly therethroughand-said aperture is enlarged to form a sub stantially'circular aperture31. The shield member 29 is of less vertical demensionsthan the plate28, and approximately the same transverse dimensions as saidpla-te andis provided with a recess 82 on the inner face thereof to receive thehead '26 of the pin or part 25, and the top portion 33 of the member 29is provided with a rectangular projection an adapted to enter theaperture 32 in the plate 28 as shown in Figs. 3,

one upon another with the head 26 of the pin or part .25. within therecess and with the shank of said pin or part pro ect-- ing through theaperture 31 in the plate 28, and said parts thus connected are placed inthe recess 35 and secured in position by soldering or otherwise, inwhich the surrounding body 36 otthe plate 16 oi the denture securelyholds and retains the parts 28 and 29 in connection therewith. and therectangular projection 23% on the shield member 29 prevents solder orthe like from passing down around the pin or or into the recess 32 whichwould effect the operation of saidpin or part, and also serves to limitthe upward niovement of the pin or part in its supports. Theclasp 21 maynow be secured to the projecting portion oil the p11 or part byriveting, soldering or otherwise, and after the usual grinding andfinishing of the complete denture the saniewill be ready for use.

' In applying the denture in themoutli or mounting the same upon thenatural'teeth13 and 1%, it will be apparent that the clasp 2-1 will befree to oscillate in the denture proper as well as free lo movevertically and laterally therein by reason of the clear ance allowedbetween the shank of the pin or part 25 and the aperture 31, as clearlyshown at 87 in Fig. 5 of the drawing. The oscillatory movement of theclasp will be limited in the construction shown in Fig. 4: by the cutoil portions 27 of the head 26 striking the top wall of the recess'32 inthe shield member 29 as will be apparent. Thisconstruction will providea smooth and unobstructed outer face to the denture where the movableclasp 21 is mounted in connection therewith, and while I have specifieda specific manner of mounting the separate parts 21, 25, 28and 29together and to the. denture proper, it will be understood that I am notnecessarily limited to this method of procedure as said parts may beconnected in any desired manner.

In Fig. 10 of the drawing, I have shown a slight modification in whichthe head 26 of the pin or part 25 is cut away as shown part 25' at 38and the upper Wall of the recess 0' is made t -shaped in form as shownat 39 .to permitoi the oscillation of the pin,

shown a specific form of denture,bridge or plate work that I am notnecessarily limited to the character of denture employed, the inventionconsisting in the method of mounting a-movable clasp in connection withany kind or class of artificial denture,

and various changes in and modifications of the'construction hereinshown and described may be made, within the scope of the appendedclaims, without departing from the spirit of my invention or sacrificingits advantages. 7

Having fully ClESCllbQCl' my invention,

It will be apparent that while I. have what I claim as new and desiretosecure by Letters Patent is I 1. In an artificial denture device, adenture body, an attaching plate and a shield mem her mounted inconnection with each other to form a recess therebetween, said plate andmember when connected being adapted to be secured to the denture body, apin or part loosely mounted in connection with said plate and member andprovided with an enlarged head located in said recess, the shank of saidpin or part projecting through said plate, and a tooth clasp secured tothe projecting portion'ofsaidpin or part.

2. In an artificial'denture device, a denture body, an attaching plate,and ashield member mounted in connection with each other to'form arecess therebetween, said plate and member when connected being adaptedto be secured to the denturebody: a pin or part loosely mounted inconnection with said plate and member and provided with an enlarged headlocated in said recess, the shank of said pin or part projecting throu'11 said plate, anda tooth clasp securedto t e projecting portion of saidpin or part Whereby said tooth clasp and pin or part are loosely mountedin connection withflsaid denture body. 7 :5

3. The herein described means formounting a-movable clasp in connectionwith a denture body comprising a unit composed of separate parts adaptedto be imbedded in.

said denture body, and a pin or part per-' manently retained in andloosely mounted in connection with said unit and projecting therefrom.

4. The herein descrlbed ine'ans'for mounting a movable clasp inconnection with a denture body, comprising a unit composed of anattaching plate and shield member adapted to be imbedded in said denturebody, and a headed pin or part adapted to be permanently retained insaid unit and loosely mounted therein.

5. A movable clasp mounting for artificial dentures of the classdescribed comprising an attaching plate, shield member and a pin orpart, said parts being adapted to be connected in such manner as toretain the pin or part in and between said attaching plate and shieldmember with the pin or part projecting therefrom and capable of movementtherein.

6. A movable clasp mounting for artificial dentures of the classdescribed comprising an attaching plate, shield member and a pin orpart, said parts being adapted to be con nected in such manner as toretain the pin or part in and between said attaching plate and shieldmember with the pin or part projecting therefrom and capable of movementtherein, and a tooth clasp adapted to be secured to the projectingportion of said pin or part.

7 A movable clasp mounting for artificial dentures of the classdescribed comprising an attaching plate, shield member and a pin orpart, said plate being provided with an elongated aperture enlarged atits inner end, said member being provided with a recess and with aprojection adapted to enter a part of the aperture of said plate andsaid pin or part being provided with a head adapted to be located in therecess of said member and with a shank projecting loosely through theenlargement of the aperture in said plate.

8. A movable clasp mounting for artificial dentures of the classdescribed comprising an attaching plate, shield member and a pin orpart, said plate being provided with an elongated aperture enlarged atthe inner end, said member being provided with a recess and with aprojection adapted to enter a part of the aperture of said plate andsaid pin or part being provided with a head adapted to be located in therecess of said member and with a shank projecting loosely through theenlargement of the aperture in said plate, and a tooth clasp adapted tobe secured to the shank of said pin or part.

9. The combination with an artificial denture device of the classdescribed, of means comprising connected members adapted to be embeddedin and secured to said denture body, a pin or part loosely supported inconnection therewith, said pin or part being contained within said meansand projecting therefrom, and a tooth clasp mounted on the projectingportion of said pin or part.

10. The combination with an artificial denture device of the classdescribed, of means comprising connected members adapted to be embeddedin and secured to said denture body, a pin or part loosely supported inconnection therewith, said pin or part being contained within said meansand projecting therefrom, a tooth clasp mounted on the projectingportion of said pin or part, and means on said pin or part within saidfirst named means and cooperating therewith for limiting the movement ofsaid pin or part in predetermined directions.

In testimony that I claim the foregoing as my invention I have signed myname this 15th day of March, 1922.

LAWRENCE A. KIANDER.

